REGEX Date Validation with 3-Week Fallback
Checks 'Close Date' using REGEX for YYYY-MM-DD format. If valid, passes it; else, sets date to 3 weeks from now. Ideal for ensuring reliable date handling in automations.
This n8n workflow demonstrates practical REGEX usage in an IF node to validate a 'Close Date' field. Starting with a Manual Trigger, it sets an initial date value. The core IF node tests if the Close Date matches the pattern /\d\d\d\d-\d\d-\d\d/i (case-insensitive YYYY-MM-DD). If matched, it routes to 'Set Close Date To Original', preserving the value. If not, it generates a fallback date three weeks ahead using JavaScript's Date API: new Date(new Date().setDate(new Date().getDate() + 21)).toISO
- Platform
- n8n
- Category
- Education
- Price
- $7.99
- Creator
- Vera Petrova
- regex
- date-validation
- conditional-logic
- n8n-core
- date-handling
- if-node
- set-node
- automation
- fallback
- education
How to import this workflow into n8n
- 1Purchase or download the workflow to get the n8n workflow JSON file.
- 2In your n8n instance, open Workflows and choose "Import from File" (or paste the JSON with Ctrl+V on the canvas).
- 3Open each node marked with a credential warning and connect your own accounts and API keys.
- 4Run the workflow once manually to verify the data flow, then toggle it to Active.
Related Education workflows
- Learn JSON Basics with an Interactive Step-by-Step Tutorial for Beginners$14.99
- Learn n8n Expressions with an Interactive Step-by-Step Tutorial for Beginners$14.99
- Automated AI Degree Audit Using Google Sheets and OpenAI$9.99
- Learn API Fundamentals with an Interactive Hands-On Tutorial Workflow$24.99
- Master Webhook Integration and Security with Supabase in n8n$14.99
- Master JavaScript Code Node with Interactive n8n Tutorial$9.99
More from Vera Petrova
Need this deployed? We'll set it up for you.
Our automation experts deploy this workflow in your stack, connect your accounts, and verify it works — or build a custom solution from scratch.